The numbering for this series is strange. The first 5 issues, #1 to #5 were published from June 1964 to April of 1965 and the series was discontinued. Then, in July of 1965, the Charlton comic, "Unusual Tales" was re-titled Blue Beetle and ran from issues #50 to #54. There is a separate 1967 series numbered #1 to 5.